Service manual

3-30 3-31
5. A/V BLOCK DIAGRAM
(PB MODE)
+
+
51 42 39 44
1413
62 6963
81
86 87 89 88 91 93 94 92
84
IC301
HA118717NF
79 78
22
73 71
52 56
2126242318 19
50
60 58 35
46
EP CH2 EP CH1
V. OUT
(TO u-COM)
D-V SYNC
(FROM u-COM)
System System
Y-CCD
C-CCD
CLOCK Drive
FBC
Video ALC
LPF
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
2fsc
(TO u-COM)
System
System
V.H/SW30
(FROM u-COM)
V.ENV
(TO u-COM)
System
SP CH2 SP CH1
Serial Cont
interface
X-tal
VCO/OSC
TRAP
FM AGC P.EQ G.EQ D LIM Y LPF
Main
De-Empf
DEMO
S LPF
2M LPF
ACC
CTL Trap
fh Trap
HIFI Trap
C LPF DEALY
MIX
AMP
SQUEL CH
CLEAR
SYNC
CLAMP
CLAMP
Sharpness
CONTROL
YNR NC
SYNC SEP
C-SYNC
(TO u-COM)
System
NL
De-eMPH
VCA
C.K
LPF
BDBPF
CCD LPF
APC/ACC
DET
L- DET
Main
Conv2
Main
Conv1
(REC MODE)
+
+
++++
1
51 52 42 39 44 46
35
31
30 28 29 21 26 24 23 18 19 50 22 20 14 13 15
LINE 2
VIDEO IN
LINE 1
VIDEO IN
TV
VIDEO IN
35
35 6269 63 7371
81
86 87 89 88
91
93 94 92
ATT -10dB
VIDEO
AGC
CLEAR
SYNC
V. OUT
(TO u-COM)
D-V SYNC
(TO u-COM)
System
System
System
Y-CCD
C-CCD
CLOCK Drive
6dB
AMP
FBC
Video ALC
SQUEL CH
ATT -10dB
C-SYNC
(TO u-COM)
ATT -10dB
DT-587M's
LPF
AGC DET
CLAMP
Y-LPF
YNR
CLAMP
SYNC
SEP
D.E.
C-LPF
SPFACC
C-LPF
NL Emph
LPF
LPF
HPF
VCA
TRAP
FBC
ALC
Main
Conv2
Main
Conv2
APC/ACC
DET
Main
Emph
FM
MOD
REC
Trap
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
MIX
ATT
B.E
C.K
CCD
LPF
L-DET
VCD
(-4dB)
f0=1.68M
f/0DEV
Adjst
X-tal
VCO/OSC
Serial Cont
interface
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
2fsc
(TO u-COM)
System
System
V.H/SW30
(FROM u-COM)
System
SP CH2 SP CH1 EP CH2 EP CH1
IC301
HA118717NF